x86_64/riscv64: fmtAir should write to the correct writer

Author: xtexx

src/arch/riscv64/CodeGen.zig

@@ -1015,7 +1015,7 @@ fn formatAir(
     _: std.fmt.FormatOptions,
     writer: anytype,
 ) @TypeOf(writer).Error!void {
-    data.func.air.dumpInst(data.inst, data.func.pt, data.func.liveness);
+    data.func.air.writeInst(writer, data.inst, data.func.pt, data.func.liveness);
 }
 fn fmtAir(func: *Func, inst: Air.Inst.Index) std.fmt.Formatter(formatAir) {
     return .{ .data = .{ .func = func, .inst = inst } };

src/arch/x86_64/CodeGen.zig

@@ -1122,7 +1122,7 @@ fn formatAir(
     _: std.fmt.FormatOptions,
     writer: anytype,
 ) @TypeOf(writer).Error!void {
-    data.self.air.dumpInst(data.inst, data.self.pt, data.self.liveness);
+    data.self.air.writeInst(writer, data.inst, data.self.pt, data.self.liveness);
 }
 fn fmtAir(self: *CodeGen, inst: Air.Inst.Index) std.fmt.Formatter(formatAir) {
     return .{ .data = .{ .self = self, .inst = inst } };